OPERATION
24
Synthesis
06/40V GAS
5.5 SWITCHING OFF THE OVEN
Press the key
to switch off the oven.
The heating stops while the air recycling fan and conveyor
continue working ( if already on) until the temperature drops below
150°C. Then the main contactor de-energizes leaving only the
circuit board powered to feed the clock and programmed
switching on functions.
During the switching off phase the rear illumination remains on and
the word “OFF” flashes. During this phase the oven can be
switched back on and the conveyor can be started or stopped.
To prevent the oven being accidentally switched on, check if the
display indicates the desired day and time of switching on, or, if
automatic switching on is not desired, that the words “start: off” appear.
5.6 ALARMS
The functioning of the oven is continuously checked. An alarm procedure is activated if any
faults arise.
5.6.1
“OVER 1”
If the temperature measured by probe 1 exceeds 350°C or if the probe breaks, the
temperature value on the display is repla
ced by the flashing words “OVER 1” and the alarm
sounds intermittently.
The alarm can be switched off by pressing the key
.
The oven continues working and only the probe 2 is used to measure the temperature. The
control temperature is automatically decreased by 40°C.
This variation in the temperature value is effected to correct the only value taken in the hottest
part of the oven, and to simulate a value near to the real one previously elaborated by making
the average between the hottest and coldest points. This allows the oven to be used even
when a probe breaks.
5.6.2
“OVER 2”
If the temperature measured by probe 2 exceeds 450°C or if the probe breaks, the
temperature value on the display is replaced by the flashing words
“OVER 2” and the alarm
sounds intermittently.
The alarm can be switched off by pressing the key
.
The oven continues working and only probe 1 is used to measure the temperature. The
control temperature is automatically raised by 40°C.
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